Monday, April 23, 2018

Extend Physical Volume Group

root@ubuntu:/motadata/motadata# fdisk -l
Disk /dev/sda: 322.1 GB , 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders, total 629145600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000713d6

 Device Boot Start End Blocks Id System
/dev/sda1 * 2048 782335 390144 83 Linux
/dev/sda2 782336 209713151 104465408 8e Linux LVM

 Disk /dev/mapper/vg0-root: 10.2 GB, 10238296064 bytes
255 heads, 63 sectors/track, 1244 cylinders, total 19996672 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-root doesn't contain a valid partition table

 Disk /dev/mapper/vg0-swap: 8191 MB, 8191475712 bytes
255 heads, 63 sectors/track, 995 cylinders, total 15998976 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-swap doesn't contain a valid partition table

 Disk /dev/mapper/vg0-motadata: 88.5 GB, 88541757440 bytes
255 heads, 63 sectors/track, 10764 cylinders, total 172933120 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-motadata doesn't contain a valid partition table
root@ubuntu:/motadata/motadata# lvdisplay

 --- Logical volume ---
LV Path /dev/vg0/root
LV Name root
VG Name vg0
LV UUID 8lPue7-0uYL-Pra7-FvoN-AVdd-1sxy-l7BFQY
LV Write Access read/write
LV Creation host, time ubuntu, 2017-05-22 12:46:16 +0530
LV Status available
# open 1
LV Size 9.54 GiB
Current LE 2441
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0

 --- Logical volume ---
LV Path /dev/vg0/swap
LV Name swap
VG Name vg0
LV UUID tFWxPn-WPa5-J56B-8dN3-0fsr-to0K-RXMSWw
LV Write Access read/write
LV Creation host, time ubuntu, 2017-05-22 12:46:16 +0530
LV Status available
# open 2
LV Size 7.63 GiB
Current LE 1953
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1

 --- Logical volume ---
LV Path /dev/vg0/motadata
LV Name motadata
VG Name vg0
LV UUID ri3bxW-tEPc-XiJB-eu0W-k2Zt-Ri0c-7nbkq7
LV Write Access read/write
LV Creation host, time ubuntu, 2017-05-22 12:46:16 +0530
LV Status available
# open 1
LV Size 82.46 GiB
Current LE 21110
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
root@ubuntu:/motadata/motadata# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 vg0 lvm2 a-- 99.62g 0
root@ubuntu:/motadata/motadata# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
motadata vg0 -wi-ao--- 82.46g
root vg0 -wi-ao--- 9.54g
swap vg0 -wi-ao--- 7.63g
root@ubuntu:/motadata/motadata# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 3 0 wz--n- 99.62g 0
root@ubuntu:/motadata/motadata# lvextend /dev/vg0/motadata /dev/sda2
No free extents on physical volume "/dev/sda2"
No specified PVs have space available
root@ubuntu:/motadata/motadata# fdisk /dev/sda
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
Partition number (1-4, default 3):
Using default value 3
First sector (209713152-629145599, default 209713152):
Using default value 209713152
Last sector, +sectors or +size{K,M,G} (209713152-629145599, default 629145599):
Using default value 629145599

 Command (m for help): t
Partition number (1-4): 3
Hex code (type L to list codes): 8e
Changed system type of partition 3 to 8e (Linux LVM)

 Command (m for help): w
The partition table has been altered!

 Calling ioctl() to re-read partition table.

 WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
root@ubuntu:/motadata/motadata# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 12G 4.0K 12G 1% /dev
tmpfs 2.4G 704K 2.4G 1% /run
/dev/dm-0 9.3G 3.4G 5.5G 39% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 12G 0 12G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/mapper/vg0-motadata 82G 69G 9.4G 88% /motadata
/dev/sda1 361M 40M 299M 12% /boot
root@ubuntu:/motadata/motadata# fdisk -l
Disk /dev/sda: 322.1 GB, 322122547200 bytes
255 heads, 63 sectors/track, 39162 cylinders, total 629145600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000713d6

 Device Boot Start End Blocks Id System
/dev/sda1 * 2048 782335 390144 83 Linux
/dev/sda2 782336 209713151 104465408 8e Linux LVM
/dev/sda3 209713152 629145599 209716224 8e Linux LVM

 Disk /dev/mapper/vg0-root: 10.2 GB, 10238296064 bytes
255 heads, 63 sectors/track, 1244 cylinders, total 19996672 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-root doesn't contain a valid partition table

 Disk /dev/mapper/vg0-swap: 8191 MB, 8191475712 bytes
255 heads, 63 sectors/track, 995 cylinders, total 15998976 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-swap doesn't contain a valid partition table

 Disk /dev/mapper/vg0-motadata: 88.5 GB, 88541757440 bytes
255 heads, 63 sectors/track, 10764 cylinders, total 172933120 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

 Disk /dev/mapper/vg0-motadata doesn't contain a valid partition table
root@ubuntu:/motadata/motadata# partprobe
root@ubuntu:/motadata/motadata# pvcreate /dev/sda3
Physical volume "/dev/sda3" successfully created
root@ubuntu:/motadata/motadata# vgextend vg0 /dev/sda3
Volume group "vg0" successfully extended
root@ubuntu:/motadata/motadata# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
motadata vg0 -wi-ao--- 82.46g
root vg0 -wi-ao--- 9.54g
swap vg0 -wi-ao--- 7.63g
root@ubuntu:/motadata/motadata# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 vg0 lvm2 a-- 99.62g 0
/dev/sda3 vg0 lvm2 a-- 200.00g 200.00g
root@ubuntu:/motadata/motadata# lvextend -L +180G /dev/vg0/motadata /dev/sda3
Extending logical volume motadata to 262.46 GiB
Logical volume motadata successfully resized
root@ubuntu:/motadata/motadata# resize2fs /dev/vg0/motadata
resize2fs 1.42.9 (4-Feb-2014)
Filesystem at /dev/vg0/motadata is mounted on /motadata; on-line resizing required
old_desc_blocks = 6, new_desc_blocks = 17
The filesystem on /dev/vg0/motadata is now 68802560 blocks long.
root@ubuntu:/motadata/motadata# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 12G 4.0K 12G 1% /dev
tmpfs 2.4G 708K 2.4G 1% /run
/dev/dm-0 9.3G 3.4G 5.5G 39% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 12G 0 12G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/mapper/vg0-motadata 259G 69G 180G 28% /motadata
/dev/sda1 361M 40M 299M 12% /boot
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Add NTP server entry in Windows machine from Command prompt

Open Command Prompt (Run As Administrator), and execute below mentioned command.

> net stop w32time
> w32tm /config /syncfromflags:manual /manualpeerlist:"0.in.pool.ntp.org, 1.asia.pool.ntp.org, 0.asia.pool.ntp.org"
> w32tm /config /reliable:yes
> net start w32time

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Install phantomjs in ubuntu 14.04.5

Find below-mentioned steps to configure phantomjs in ubuntu Mahcine.

 root@ubuntu:/motadata/motadata/phantomjs# cd /usr/local/share/

 root@ubuntu:/usr/local/share# wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x86_64.tar.bz2

 linux-root@ubuntu:/usr/local/share# tar xjf phantomjs-2.1.1-linux-x86_64.tar.bz2

 root@ubuntu:/usr/local/share# ln -s /usr/local/share/phantomjs-2.1.1-linux-x86_64/bin/phantomjs /usr/

 root@ubuntu:/usr/local/share# ln -s /usr/local/share/phantomjs-2.1.1-linux-x86_64/bin/phantomjs /usr/

 root@ubuntu:/usr/local/share# ln -s /usr/local/share/phantomjs-2.1.1-linux-x86_64/bin/phantomjs /usr/

 root@ubuntu:/usr/local/share# cd

 root@ubuntu:~# phantomjs -v
2.1.1
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Assign Unused Space / Reduce space from the LVM Partition in Linux/Unix

Here, we are going to provide all remaining free space of hard disk to /motadata partition.

root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg0-root 14G 1.9G 12G 14% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 2.0G 4.0K 2.0G 1% /dev
tmpfs 395M 400K 395M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 2.0G 0 2.0G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/xvda1 361M 36M 303M 11% /boot
/dev/mapper/vg0-motadata 71G 52M 67G 1% /motadata
root@ubuntu:~# pvs
  PV         VG   Fmt  Attr PSize   PFree
  /dev/xvda2 vg0  lvm2 a--  129.62g 36.17g
root@ubuntu:~# lvextend /dev/mapper/vg0-motadata /dev/xvda2
Extending logical volume motadata to 107.69 GiB
Logical volume motadata successfully resized
root@ubuntu:~# resize2fs /dev/mapper/vg0-motadata
resize2fs 1.42.9 (4-Feb-2014)
Filesystem at /dev/mapper/vg0-motadata is mounted on /motadata; on-line resizing required
old_desc_blocks = 5, new_desc_blocks = 7
The filesystem on /dev/mapper/vg0-motadata is now 28230656 blocks long.
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg0-root 14G 1.9G 12G 14% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 2.0G 4.0K 2.0G 1% /dev
tmpfs 395M 400K 395M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 2.0G 0 2.0G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/xvda1 361M 36M 303M 11% /boot
/dev/mapper/vg0-motadata 106G 60M 101G 1% /motadata

Reduce space from /motadata partition.

root@ubuntu:~# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
motadata vg0 -wi-ao--- 107.69g
root vg0 -wi-ao--- 14.30g
swap vg0 -wi-ao--- 7.63g
root@ubuntu:~# df -kh
Filesystem                Size  Used Avail Use% Mounted on
/dev/mapper/vg0-root       14G  1.9G   12G  14% /
none                      4.0K     0  4.0K   0% /sys/fs/cgroup
udev                      2.0G  4.0K  2.0G   1% /dev
tmpfs                     395M  400K  395M   1% /run
none                      5.0M     0  5.0M   0% /run/lock
none                      2.0G     0  2.0G   0% /run/shm
none                      100M     0  100M   0% /run/user
/dev/xvda1                361M   36M  303M  11% /boot
/dev/mapper/vg0-motadata  106G   60M  101G   1% /motadata
root@ubuntu:~# umount -v /motadata
/dev/mapper/vg0-motadata has been unmounted
root@ubuntu:~# e2fsck -f /dev/mapper/vg0-motadata
e2fsck 1.42.9 (4-Feb-2014)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/mapper/vg0-motadata: 27/7061504 files (0.0% non-contiguous), 491233/28230656 blocks
root@ubuntu:~# resize2fs /dev/mapper/vg0-motadata 36G
resize2fs 1.42.9 (4-Feb-2014)
Resizing the filesystem on /dev/mapper/vg0-motadata to 9437184 (4k) blocks.
The filesystem on /dev/mapper/vg0-motadata is now 9437184 blocks long.
root@ubuntu:~# lvreduce -L -36G /dev/mapper/vg0-motadata
  WARNING: Reducing active logical volume to 71.69 GiB
  THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce motadata? [y/n]: y
  Reducing logical volume motadata to 71.69 GiB
  Logical volume motadata successfully resized
root@ubuntu:~# resize2fs /dev/vg0/motadata
resize2fs 1.42.9 (4-Feb-2014)
Resizing the filesystem on /dev/vg0/motadata to 18793472 (4k) blocks.
The filesystem on /dev/vg0/motadata is now 18793472 blocks long.
root@ubuntu:~# mount /dev/vg0/motadata /motadata/
root@ubuntu:~# lvs
LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert
motadata vg0 -wi-ao--- 71.69g
root vg0 -wi-ao--- 14.30g
swap vg0 -wi-ao--- 7.63g
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Create a New partition using attached hard disk.

First Check current HDD.
root@Ubuntu:/# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 3.9G 12K 3.9G 1% /dev
tmpfs 798M 416K 798M 1% /run
/dev/sda1 29G 866M 27G 4% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 3.9G 0 3.9G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sdb1 40G 48M 38G 1% /mnt
root@Ubuntu:/# fdisk -l

Disk /dev/sda: 31.5 GB, 31457280000 bytes
4 heads, 32 sectors/track, 480000 cylinders, total 61440000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004a8a3

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    61439999    30718976   83  Linux

Disk /dev/sdb: 42.9 GB, 42949672960 bytes
255 heads, 63 sectors/track, 5221 cylinders, total 83886080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xb468d93a

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1            2048    83884031    41940992    7  HPFS/NTFS/exFAT

Disk /dev/sdc: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders, total 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0cb3884b

   Device Boot      Start         End      Blocks   Id  System
root@Ubuntu:/# fdisk /dev/sdc
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1):
Using default value 1
First sector (2048-104857599, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-104857599, default 104857599):
Using default value 104857599
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): 8e
Changed system type of partition 1 to 8e (Linux LVM)
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
root@Ubuntu:/# mkfs -t ext4 /dev/sdc1
mke2fs 1.42.9 (4-Feb-2014)
Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
3276800 inodes, 13106944 blocks
655347 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
400 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
root@Ubuntu:/# tune2fs -m 1 /dev/sdc1
tune2fs 1.42.9 (4-Feb-2014)
Setting reserved blocks percentage to 1% (131069 blocks)
root@Ubuntu:/# mkdir /motadata/
root@Ubuntu:/# mount /dev/sdc1 /motadata/
root@Ubuntu:/# df -kh
Filesystem      Size  Used Avail Use% Mounted on
udev            3.9G   12K  3.9G   1% /dev
tmpfs           798M  416K  798M   1% /run
/dev/sda1        29G  866M   27G   4% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none            5.0M     0  5.0M   0% /run/lock
none            3.9G     0  3.9G   0% /run/shm
none            100M     0  100M   0% /run/user
/dev/sdb1        40G   48M   38G   1% /mnt
/dev/sdc1        50G   52M   49G   1% /motadata
root@Ubuntu:/# blkid
/dev/sr0: LABEL="rd_rdfe_stable.161107-1031" TYPE="udf"
/dev/sda1: LABEL="cloudimg-rootfs" UUID="5651329a-c2a3-4ab1-9a39-09a559160b9a" TYPE="ext4"
/dev/sdb1: UUID="a1838da8-2818-4a42-8881-78fdbaee7f28" TYPE="ext4"
/dev/sdc1: UUID="b37b0bde-65c9-47a2-9e93-cad8fcf23364" TYPE="ext4"
root@Ubuntu:/# vim /etc/fstab
 # CLOUD_IMG: This file was created/modified by the Cloud Image build process
UUID=5651329a-c2a3-4ab1-9a39-09a559160b9a       /        ext4   defaults,discard        0 0
/dev/disk/cloud/azure_resource-part1    /mnt    auto    defaults,nobootwait,comment=cloudconfig 0       2
UUID=b37b0bde-65c9-47a2-9e93-cad8fcf23364       /motadata       ext4    defaults,discard
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